/* ==========================================================================
   LumaLink VPN - Official Landing Page Stylesheet
   Theme: Clean Light Series (Fresh, Modern, Zero Dot Pattern, Light Aesthetic)
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Brand Colors from App */
  --brand-blue: #1D72F2;
  --brand-blue-hover: #1558BD;
  --brand-blue-light: #EEF4FF;
  --brand-blue-border: #C7D9FE;

  /* App Connection Emerald Green */
  --primary-emerald: #00D589;
  --primary-emerald-hover: #00bf7b;
  --primary-emerald-light: #ECFDF5;
  --primary-emerald-border: #A7F3D0;

  /* Light Theme Surfaces (Pure Clean & Fresh) */
  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-alt: #F1F5F9;
  --bg-nav: rgba(255, 255, 255, 0.92);

  /* Typography Colors */
  --text-main: #0F172A;       /* Deep Slate Navy for Crisp Readability */
  --text-secondary: #475569;  /* Balanced Slate Gray */
  --text-muted: #64748B;      /* Soft Slate Gray */

  /* Borders & Shadows */
  --border-light: #E2E8F0;
  --border-card: #E5E9F0;
  --border-card-hover: #BFDBFE;
  
  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-hover: 0 16px 32px -4px rgba(29, 114, 242, 0.12), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 20px 45px -10px rgba(15, 23, 42, 0.08);

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-main);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --container-max: 1200px;
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  /* Fresh, soft light gradient - NO DOTS, NO NOISE */
  background: linear-gradient(180deg, #F0F6FE 0%, #F5F7FB 25%, #F8FAFC 60%, #FFFFFF 100%);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

button {
  border: none;
  background: transparent;
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Subtle, soft light ambient glow (NO DOTS) */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

.bg-glow-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(147, 197, 253, 0.6) 0%, transparent 70%);
  top: -100px;
  right: -50px;
}

.bg-glow-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(167, 243, 208, 0.45) 0%, transparent 70%);
  top: 35%;
  left: -150px;
}

.bg-glow-3 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(199, 210, 254, 0.5) 0%, transparent 70%);
  bottom: 8%;
  right: -80px;
}

/* --- Typography Helpers --- */
.gradient-text {
  background: linear-gradient(135deg, #1D72F2 0%, #00B876 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 800;
}

.text-center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 0.85rem;
  background: #EFF6FF;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid #DBEAFE;
}

.section-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.65;
}

.section {
  padding: 6rem 0;
  position: relative;
  z-index: 1;
}

/* --- Pill Badge --- */
.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pill-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--primary-emerald);
  box-shadow: 0 0 8px rgba(0, 213, 137, 0.7);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.8; }
}

.pill-badge-glow {
  border-color: #BFDBFE;
  background: #EFF6FF;
  color: var(--brand-blue);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-normal);
  cursor: pointer;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
}

.btn-large {
  padding: 1rem 2.2rem;
  font-size: 1.05rem;
}

/* Emerald Green Primary Button */
.btn-primary {
  background: linear-gradient(135deg, #00D589 0%, #00B876 100%);
  color: #022C1D;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(0, 213, 137, 0.35);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 213, 137, 0.45);
  background: linear-gradient(135deg, #05E594 0%, #00C67F 100%);
  color: #022C1D;
}

/* Crisp Clean Outline Button */
.btn-outline {
  background: #FFFFFF;
  color: var(--text-main);
  border: 1.5px solid #CBD5E1;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  background: #F8FAFC;
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* --- Google Play Badge Button (Classic Premium Dark) --- */
.google-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  background: #000000;
  color: #FFFFFF;
  border: 1px solid #1E293B;
  padding: 0.65rem 1.5rem;
  border-radius: 14px;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.15);
}

.google-play-btn:hover {
  transform: translateY(-2.5px);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.25);
  background: #111827;
}

.google-play-btn-large {
  padding: 0.85rem 1.85rem;
}

.gp-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.gp-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.15;
}

.gp-small {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94A3B8;
  font-weight: 700;
}

.gp-brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-family: var(--font-heading);
  color: #FFFFFF;
}

.icon-svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.icon-play {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* --- Header / Navigation --- */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(29, 114, 242, 0.15);
}

.brand-title {
  font-size: 1.4rem;
  font-weight: 800;
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-accent {
  color: var(--brand-blue);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-item {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-item:hover {
  color: var(--brand-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-email-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  background: #F1F5F9;
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.nav-email-link:hover {
  background: #E2E8F0;
  color: var(--brand-blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero-section {
  padding: 4.5rem 0 5.5rem 0;
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-content {
  max-width: 620px;
}

.hero-title {
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.35rem;
  font-family: var(--font-heading);
  color: var(--text-main);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2.2rem;
}

.hero-description strong {
  color: var(--text-main);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2.8rem;
  flex-wrap: wrap;
}

/* Hero Trust Stats (Clean Light Surface) */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  padding: 1.35rem 1.85rem;
  background: #FFFFFF;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  width: fit-content;
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background-color: var(--border-light);
}

/* --- Hero Visual & Phone Mockup --- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup-wrapper {
  position: relative;
  max-width: 440px;
  width: 100%;
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-device-img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 25px 45px rgba(15, 23, 42, 0.15));
  position: relative;
  z-index: 2;
}

.phone-glow {
  position: absolute;
  top: 15%;
  left: 15%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, rgba(29, 114, 242, 0.15) 0%, rgba(0, 213, 137, 0.12) 50%, transparent 80%);
  filter: blur(50px);
  z-index: 1;
}

/* --- Features Grid (Crisp Clean White Cards) --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-card-hover);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.icon-emerald {
  background: var(--primary-emerald-light);
  color: #059669;
  border: 1px solid var(--primary-emerald-border);
}

.icon-blue {
  background: var(--brand-blue-light);
  color: var(--brand-blue);
  border: 1px solid var(--brand-blue-border);
}

.icon-purple {
  background: #F5F3FF;
  color: #7C3AED;
  border: 1px solid #DDD6FE;
}

.icon-cyan {
  background: #ECFEFF;
  color: #0891B2;
  border: 1px solid #A5F3FC;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  color: var(--text-main);
  font-family: var(--font-heading);
}

.feature-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.feature-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.meta-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  background: #F1F5F9;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

/* --- Interactive Showcase --- */
.showcase-section {
  background: #F1F5F9;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.showcase-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin: 3rem 0;
  flex-wrap: wrap;
}

.showcase-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  background: #FFFFFF;
  border: 1.5px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.showcase-tab svg {
  width: 18px;
  height: 18px;
}

.showcase-tab:hover {
  color: var(--brand-blue);
  border-color: #BFDBFE;
  transform: translateY(-2px);
}

.showcase-tab.active {
  background: var(--brand-blue);
  color: #FFFFFF;
  border-color: var(--brand-blue);
  box-shadow: 0 6px 20px rgba(29, 114, 242, 0.35);
}

.showcase-panels {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
}

.showcase-panel {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.showcase-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Crisp White Showcase Surface */
.panel-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
  background: #FFFFFF;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 3.5rem;
  box-shadow: var(--shadow-elevated);
}

.panel-text {
  text-align: left;
}

.panel-badge {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--brand-blue);
  margin-bottom: 0.75rem;
  display: inline-block;
}

.panel-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1.1rem;
  font-family: var(--font-heading);
  color: var(--text-main);
}

.panel-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.panel-list {
  list-style: none;
  margin-bottom: 2.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.panel-list li {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 600;
}

.panel-list li svg {
  width: 18px;
  height: 18px;
  color: #059669;
  background: #D1FAE5;
  border-radius: 50%;
  padding: 2px;
  flex-shrink: 0;
}

.panel-image-wrap {
  display: flex;
  justify-content: center;
}

.panel-mockup-img {
  max-width: 290px;
  width: 100%;
  border-radius: 28px;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.15);
  border: 1px solid var(--border-light);
  transition: transform var(--transition-normal);
}

.panel-mockup-img:hover {
  transform: scale(1.02);
}

/* --- Security / Privacy Shield Section --- */
.security-card {
  background: linear-gradient(135deg, #EFF6FF 0%, #EEF2FF 50%, #F5F3FF 100%);
  border: 1px solid #DBEAFE;
  border-radius: var(--radius-xl);
  padding: 4rem;
  box-shadow: var(--shadow-card);
}

.security-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 3.5rem;
}

.security-title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1.25rem;
  font-family: var(--font-heading);
  color: var(--text-main);
}

.security-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.2rem;
}

.security-commitments {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin-bottom: 2.5rem;
}

.commit-item {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
}

.commit-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #FFFFFF;
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #DBEAFE;
}

.commit-icon svg {
  width: 20px;
  height: 20px;
}

.commit-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.commit-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.security-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.shield-badge-box {
  position: relative;
  width: 240px;
  height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.shield-logo {
  width: 104px;
  height: 104px;
  border-radius: 24px;
  position: relative;
  z-index: 2;
  box-shadow: 0 16px 36px rgba(29, 114, 242, 0.2);
}

.shield-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed rgba(29, 114, 242, 0.35);
  animation: rotateRing 20s linear infinite;
}

.shield-ring-1 {
  width: 180px;
  height: 180px;
}

.shield-ring-2 {
  width: 240px;
  height: 240px;
  border-color: rgba(99, 102, 241, 0.25);
  animation-direction: reverse;
  animation-duration: 25s;
}

@keyframes rotateRing {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.shield-tag-pill {
  position: absolute;
  bottom: -15px;
  background: #FFFFFF;
  border: 1px solid #BFDBFE;
  color: var(--brand-blue);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

/* --- Scenarios Section --- */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-card);
}

.scenario-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-card-hover);
  box-shadow: var(--shadow-hover);
}

.scenario-number {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--brand-blue);
  font-family: var(--font-heading);
  margin-bottom: 0.85rem;
}

.scenario-icon {
  font-size: 2.2rem;
  margin-bottom: 1.1rem;
}

.scenario-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  font-family: var(--font-heading);
  color: var(--text-main);
}

.scenario-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- FAQ Section --- */
.faq-accordion {
  max-width: 820px;
  margin: 3.5rem auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: #BFDBFE;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.35rem 1.6rem;
  text-align: left;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-main);
  gap: 1rem;
}

.faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  color: var(--brand-blue);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer p {
  padding: 0 1.6rem 1.4rem 1.6rem;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.faq-answer a {
  color: var(--brand-blue);
  text-decoration: underline;
  font-weight: 700;
}

.faq-email {
  font-weight: 700;
}

/* --- CTA Section --- */
.cta-banner {
  background: linear-gradient(135deg, #EEF4FF 0%, #E0E7FF 50%, #EDE9FE 100%);
  border: 1.5px solid #C7D2FE;
  border-radius: var(--radius-xl);
  padding: 5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 660px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.1rem;
  font-family: var(--font-heading);
  color: var(--text-main);
}

.cta-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.2rem;
  line-height: 1.65;
}

.cta-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  background: #F1F5F9;
  border-top: 1px solid var(--border-light);
  padding: 5rem 0 2.5rem 0;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand {
  max-width: 360px;
}

.footer-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 1.2rem 0 1.5rem 0;
}

.footer-contact {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-sm);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.footer-contact .icon-svg {
  color: var(--brand-blue);
}

.email-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.email-link:hover {
  color: var(--brand-blue);
}

.copy-email-btn {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.copy-email-btn:hover {
  color: var(--text-main);
}

.copy-email-btn svg {
  width: 16px;
  height: 16px;
}

.copy-tooltip {
  position: absolute;
  top: -30px;
  right: 10px;
  background: var(--brand-blue);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.copy-tooltip.show {
  opacity: 1;
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-heading {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-col a:hover {
  color: var(--brand-blue);
}

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-sub-links {
  display: flex;
  gap: 0.85rem;
  align-items: center;
}

.footer-sub-links a {
  color: var(--text-secondary);
}

.footer-sub-links a:hover {
  color: var(--brand-blue);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-stats {
    margin: 0 auto;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .panel-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
    padding: 2.5rem;
  }

  .panel-text {
    text-align: center;
  }

  .panel-list {
    align-items: center;
  }

  .security-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .security-commitments {
    align-items: center;
  }

  .commit-item {
    text-align: left;
    max-width: 480px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 4.5rem 0;
  }

  .section-title {
    font-size: 2.1rem;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-stats {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
    text-align: center;
  }

  .stat-item {
    text-align: center;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .scenarios-grid {
    grid-template-columns: 1fr;
  }

  .showcase-tabs {
    flex-direction: column;
    align-items: stretch;
  }

  .showcase-tab {
    justify-content: center;
  }

  /* Mobile Navigation Drawer */
  .hamburger {
    display: flex;
  }

  .nav-email-link {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: #FFFFFF;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* Compact & Beautiful Mobile Footer */
  .footer {
    padding: 2.8rem 0 1.5rem 0;
  }

  .footer-top {
    gap: 1.8rem;
    margin-bottom: 2rem;
  }

  .footer-brand {
    max-width: 100%;
  }

  .footer-desc {
    margin: 0.6rem 0 1rem 0;
    font-size: 0.85rem;
    line-height: 1.55;
  }

  .footer-contact {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }

  .footer-links-group {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1rem;
  }

  .footer-heading {
    font-size: 0.88rem;
    margin-bottom: 0.6rem;
  }

  .footer-col ul {
    gap: 0.45rem;
  }

  .footer-col a {
    font-size: 0.82rem;
  }

  .footer-col:last-child {
    grid-column: span 2;
  }

  .footer-col:last-child ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding-top: 1.5rem;
    gap: 0.6rem;
    font-size: 0.8rem;
  }

  .security-card {
    padding: 2rem 1.5rem;
  }

  .cta-title {
    font-size: 2.1rem;
  }
}

@media (max-width: 480px) {
  .nav-container {
    height: 68px;
  }

  .brand-logo {
    width: 32px;
    height: 32px;
  }

  .brand-title {
    font-size: 1.15rem;
  }

  .btn-sm {
    padding: 0.5rem 0.9rem;
    font-size: 0.8rem;
    gap: 0.4rem;
  }

  .footer {
    padding: 2.2rem 0 1.2rem 0;
  }

  .footer-top {
    gap: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .footer-links-group {
    gap: 1.2rem 0.8rem;
  }
}